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XM Radio w/Digital output?

Newbie question: I'm thinking of purchasing an XM radio setup for home use. One of the main features I'm looking for is some type of digital audio output on the reciever -- either coaxial or optical. Do any XM recievers have this feature? I've been unable to find any mention of it on the models I've looked at.

WRONG Satellite Breath (alv). "XM Format" does use a lossy compression algorithm, but so does Dolby Digital, DTS, ATRAC, MP3, MP2, Real Audio, Windows Media, etc. This matters not a whit! The radio decodes the encoded bitstream back to pcm before decoding. This must take place, because (with the exception of the new, and still rare DSD "direct stream digital" converters), ALL digital to analog converters "speak" but one language...pcm (pulse code modulation, whether 16, 20, or 24 bits). In other words, in order to be converted into analog audio which we can hear, a compressed audio signal must first be "decompressed" into pcm. So a digital output on an XM radio would output PCM, just as a digital output on a minidisc deck or mp3 player (example: Archos Jukebox Recorder) outputs PCM!